Dollond, J.

Japanese: Dollond,J.(英語表記)DollondJ
Dollond, J.

...Especially since the lens system used had large aberrations, there were limitations to its effective use, and as a result, new discoveries were not continually accumulated, and new developments in microscopic observation stagnated from the 17th to the 18th century. However, expectations for microscopes were high, and in the 18th century, L. Euler of Germany and J. Dollond of England discovered that it was possible to eliminate chromatic aberration by combining lenses made of different types of glass. Although this did not immediately lead to results, it provided a perspective for research and improvement of optical glass, and at the end of the 18th century (1791), F. Beeldsnijder of the Netherlands created the first high-magnification microscope with compound lenses without chromatic aberration. ...

*Some of the terminology that mentions "Dollond, J." is listed below.

Source | Heibonsha World Encyclopedia 2nd Edition | Information

Japanese:

…とくにレンズ系には収差の大きいものが用いられていたために有効な利用には限界があり,そのために,新発見の継続的な蓄積はなされず,17世紀から18世紀にかけて,顕微鏡観察での新しい発展は低迷していた。 しかし顕微鏡への期待は大きく,18世紀に入ってドイツのL.オイラー,イギリスのドロンドJ.Dollondらは,異種のガラスで作ったレンズを組み合わせることによって色収差を除く可能性があることを発見した。これは直ちに成果を生むことにはつながらなかったが,光学ガラスの研究と改良に見通しが与えられ,18世紀末(1791)に至ってオランダのビールドスナイダーF.Beeldsnijderによって色収差なしの複合レンズをもった高倍率の顕微鏡が初めて作られた。…

※「Dollond,J.」について言及している用語解説の一部を掲載しています。

出典|株式会社平凡社世界大百科事典 第2版について | 情報

<<:  doll's house

>>:  Dollo, L. (English spelling) DolloL

Recommend

Migraine

What kind of disease is it? Main symptoms and cour...

Konrad III (English spelling)

1093 or 94-1152 The first king of Germany of the S...

LWR - Eldabourre

《 light water reactor 》⇒ light water reactor LWR [...

Ghosh, Ajoy Kumar

Born: 1909. Bengal [Died] January 13, 1962, New De...

Teacher's license - Kyoinmenkyo

A type of qualification system for school teacher...

Stone quarry - Ishikiriba

Generally, it refers to a place where stone mater...

Kanjoin (Toji Temple)

… [Ueshima Yu] [Cathedrals and Cultural Assets] A...

Mallorca

…It is an archipelago of Spain located in the Med...

Thick egg - Atsuyaki Tamago

A thick omelet, usually cooked in a special square...

Kamiya Denbei

1856-1922 A businessman from the Meiji and Taisho...

femic

...The main ones are quartz (SiO 2 ) , corundum (...

Wali (English spelling)

…In the center, the deusirme system disappeared a...

Anthurium scherzerianum (English spelling) Anthuriumscherzerianum

… [Takabayashi Masatoshi]. … *Some of the termino...

Fundamental sequence - Kihonretsu (English spelling)

A sequence { a n } where | a m - a n | approaches ...

Minobu Line

The name of the Central Japan Railway Company'...